package com.spring.demo.publicutil;

import lombok.Data;

import java.util.HashMap;

@Data
public class TestOne {

    String str  =  "123";
    public static void main(String[] args ){
        TestOne one = new TestOne();
        System.out.println( one.getStr());

        for(int i=0;i<10;i++){
            System.out.println(i);
        }
        System.out.println("1111111111111");
        System.out.println("222222222222");
        System.out.println("3333333333");

        for(int i=0;i<10;i++){
            System.out.println(i);
        }
        HashMap map = new HashMap();
        map.put("a","1");
        map.put("b","2");
        map.put(null,"");
        for(int i =0;i<map.size();i++){
            System.out.println(map.get(i));
        }

    }

}
